Yes, my original prediction for the 13.3", if the price holds at $249, is for top 5 on Amazon. In fact it should be the first Chromebook to sell more than it's inferior counterpart. Inferior in size only, of course.
My only concern is that they will not have enough supply on Amazon, and third party sellers will start price-gouging like in the past on popular models. That would keep out of the top sellers.